P1303
Cylinder Number 3 Random Misfire Detected
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)
Symptoms
- The engine hesitates or runs rough
- Reduced engine power
- Increased fuel consumption
- Check Engine light is on
- Engine vibrations at idle
Causes
- Spark plug fault in cylinder 3
- Problems with the ignition coil
- Clogged or faulty fuel injector
- Low cylinder compression
- Problems with the ignition system wiring harness
How to Fix
- Check and replace spark plug in cylinder 3
- Check the functionality of the ignition coil
- Check and replace fuel injector if necessary
- Measure the compression in the cylinder
- Check the condition of the ignition system wiring harness